9898404001 has 2 divisors, whose sum is σ = 9898404002. Its totient is φ = 9898404000.

The previous prime is 9898403959. The next prime is 9898404013. The reversal of 9898404001 is 1004048989.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 9643043601 + 255360400 = 98199^2 + 15980^2 .

It is a cyclic number.

It is not a de Polignac number, because 9898404001 - 2²⁷ = 9764186273 is a prime.

It is not a weakly prime, because it can be changed into another prime (9898404031) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4949202000 + 4949202001.

It is an arithmetic number, because the mean of its divisors is an integer number (4949202001).

Almost surely, 2^9898404001 is an apocalyptic number.

It is an amenable number.

9898404001 is a deficient number, since it is larger than the sum of its proper divisors (1).

9898404001 is an equidigital number, since it uses as much as digits as its factorization.

9898404001 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 82944, while the sum is 43.

The square root of 9898404001 is about 99490.7231906573. The cubic root of 9898404001 is about 2147.1137764338.

The spelling of 9898404001 in words is "nine billion, eight hundred ninety-eight million, four hundred four thousand, one".